Customization: | Available |
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Structure: | Single End |
Pressure: | High Pressure Mechanical Seals |
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Parameter
|
Description
|
Model
|
QT First SME
|
Seal Type
|
Single spring, unbalanced, inside-mounted mechanical seal
|
Operating Pressure
|
Max. 1.6 MPa (232 psi)
|
Operating Temperature
|
-40°C to 200°C (-40°F to 392°F)
|
Shaft Diameter Range
|
12 mm - 100 mm (0.47 in - 3.94 in)
|
Face Material
|
Tungsten Carbide (TC) against Carbon Graphite (CG)
|
Spring Material
|
AISI 316 Stainless Steel
|
Body Material
|
Cast Iron
|
Lubrication
|
Suitable for liquid lubrication, compatible with water, oil, and most solvents
|
Rotational Speed
|
Max. 3000 RPM
|
Leakage Rate
|
≤ 5 ml/h at normal operating conditions
|
Axial Length
|
35 mm - 75 mm (1.38 in - 2.95 in)
|
Radial Clearance
|
0.2 mm - 0.5 mm (0.008 in - 0.02 in)
|
Vibration Limit
|
≤ 5.6 mm/s RMS at operating speed
|
Installation Torque
|
15 N·m - 30 N·m (11.1 lb·ft - 22.1 lb·ft)
|
Chemical Compatibility
|
Resistant to acids (pH 2 - 12), alkalis, and many organic chemicals
|
Wear Resistance
|
Expected service life: 8000 - 12000 operating hours
|
Surface Finish
|
Face surface roughness Ra ≤ 0.4 μm (16 μin)
|
Hardness of TC Face
|
1300 - 1800 HV
|
Hardness of CG Face
|
80 - 120 HB
|
Spring Rate
|
15 N/mm - 25 N/mm (0.086 lbf/in - 0.142 lbf/in)
|
Spring Quantity
|
6 pieces
|
Seal Face Flatness
|
≤ 0.0009 mm (0.000035 in)
|
Dynamic O-Ring Material
|
Hydrogenated Nitrile Butadiene Rubber (HNBR)
|
Static O-Ring Material
|
Ethylene Propylene Diene Monomer (EPDM)
|
O-Ring Durometer
|
70 - 80 Shore A
|
Pressure Rating at 200°C
|
1.2 MPa (174 psi)
|
Pressure Rating at -40°C
|
1.4 MPa (203 psi)
|
Suitable Shaft Materials
|
Carbon Steel, Stainless Steel, Alloy Steel
|
Assembly Tolerance
|
Shaft diameter tolerance: ±0.02 mm (±0.0008 in)
|
Disassembly Force
|
≤ 50 N (11.2 lbf)
|
Storage Conditions
|
Store in dry environment, away from direct sunlight, at 5°C - 35°C (41°F - 95°F)
|